I want to maintain 5 versions only and user can enter any number of versions but I want to keep only 5 latest version.

On Friday 27 November 2015 09:38 AM, David Medinets wrote:
Do you want five versions of every entry or will the number of versions vary?

On Thu, Nov 26, 2015 at 10:53 PM, shweta.agrawal <[email protected] <mailto:[email protected]>> wrote:

    Thanks Dylan and David.
    I can store version information in column family. But my problem
    is when I have many versions of the same key how will I manage
    that. In Accumulo versioning I can specify that how many versions
    I want to manage.

    Suppose I have 10 versions and I only want 5 versions to store,
    how to manage this in a big table?

    Thanks
    Shweta

    On Thursday 26 November 2015 10:22 PM, David Medinets wrote:
    What are the query patterns? If you are versioning for auditing
    then changing the VersioningIterator seems the easiest approach.
    You could also store application-specific version information in
    the column family. One of the reasons that D4M does not use it is
    to allow application-specific uses. Using the CF means that any
    applications that understand D4M would not need to change their
    queries to adjust for the version information.

    On Thu, Nov 26, 2015 at 4:26 AM, shweta.agrawal
    <[email protected] <mailto:[email protected]>> wrote:

        Hi,

        I have my data stored in D4M style. I also want to maintain
        versions of different value on the basis of time.  As in D4M
        style  data is only in rowid and colQualifier only.

        Is there any way to achieve versioning in D4M schema?

        Thanks
        Shweta





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